49731618881 has 8 divisors (see below), whose sum is σ = 56954795520. Its totient is φ = 42538107168.

The previous prime is 49731618863. The next prime is 49731618883. The reversal of 49731618881 is 18881613794.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49731618881 is a prime.

It is a super-2 number, since 2×49731618881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49731618883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7412636 + ... + 7419341.

It is an arithmetic number, because the mean of its divisors is an integer number (7119349440).

Almost surely, 2^49731618881 is an apocalyptic number.

It is an amenable number.

49731618881 is a deficient number, since it is larger than the sum of its proper divisors (7223176639).

49731618881 is a wasteful number, since it uses less digits than its factorization.

49731618881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14832463.

The product of its digits is 2322432, while the sum is 56.

The spelling of 49731618881 in words is "forty-nine billion, seven hundred thirty-one million, six hundred eighteen thousand, eight hundred eighty-one".